138868778594

Names of 138868778594

• Cardinal: 138868778594 can be written as One hundred thirty-eight billion, eight hundred sixty-eight million, seven hundred seventy-eight thousand, five hundred ninety-four.

Scientific notation

• Scientific notation: 1.38868778594 × 10¹¹

Factors of 138868778594

• Number of distinct prime factors ω(n): 7
• Total number of prime factors Ω(n): 8
• Sum of prime factors: 766

Divisors of 138868778594

• Number of divisors d(n): 192
• Complete list of divisors:
  1 2 7 13 14 17 26 34 49 61 91 98 119 122 182 221 238 257 409 427 442 514 637 793 818 833 854 1037 1274 1547 1586 1666 1799 2074 2863 2989 3094 3341 3598 4369 5317 5551 5726 5978 6682 6953 7259 8738 10634 10829 11102 12593 13481 13906 14518 15677 20041 21658 23387 24949 25186 26962 30583 31354 37219 38857 40082 46774 48671 49898 50813 56797 61166 74438 77714 90389 94367 97342 101626 105113 109739 113594 163709 174643 180778 188734 203801 210226 214081 219478 260533 266509 324337 327418 340697 349286 397579 407602 424133 428162 521066 533018 632723 648674 660569 681394 735791 768173 795158 848266 1222501 1265446 1321138 1366469 1426607 1471582 1536346 1786921 1865563 2270359 2445002 2732938 2783053 2853214 2968931 3464617 3573842 3731126 4429061 4540718 5150537 5513729 5566106 5937862 6411893 6929234 8858122 9565283 9986249 10301074 11027458 12508447 12823786 13058941 15892513 19130566 19972498 20782517 23229973 24252319 25016894 26117882 31785026 38596103 41565034 44883251 46459946 48504638 66956981 77192206 83354609 87559129 89766502 109002181 133913962 162609811 166709218 169766233 175118258 218004362 270172721 314182757 325219622 339532466 540345442 583482263 628365514 763015267 1138268677 1166964526 1417028353 1526030534 2276537354 2834056706 4084375841 5341106869 8168751682 9919198471 10682213738 19838396942 69434389297 138868778594
• Sum of all divisors σ(n): 282612849120
• Sum of proper divisors (its aliquot sum) s(n): 143744070526
• 138868778594 is an abundant number, because the sum of its proper divisors (143744070526) is greater than itself. Its abundance is 4875291932

Bases of 138868778594

• Binary: 10000001010101001110010110011001100010₂
• Hexadecimal: 0x2055396662
• Base-36: 1RSMVVC2

Squares and roots of 138868778594

• 138868778594 squared (138868778594²) is 19284537668189392616836
• 138868778594 cubed (138868778594³) is 2678020191731445800166736760808584
• The square root of 138868778594 is 372651.0144813777
• The cube root of 138868778594 is 5178.4708817437

Scales and comparisons

• 138,868,778,594 seconds is equal to 4,415 years, 31 weeks, 12 hours, 43 minutes, 14 seconds.
• To count from 1 to 138,868,778,594 would take you about eight thousand, eight hundred thirty-one years!

  This is a very rough estimate, based on a speaking rate of half a second every third order of magnitude. If you speak quickly, you could probably say any randomly-chosen number between one and a thousand in around half a second. Very big numbers obviously take longer to say, so we add half a second for every extra x1000. (We do not count involuntary pauses, bathroom breaks or the necessity of sleep in our calculation!)

• A cube with a volume of 138868778594 cubic inches would be around 431.5 feet tall.

Recreational maths with 138868778594

• 138868778594 backwards is 495877868831
• The number of decimal digits it has is: 12
• The sum of 138868778594's digits is 74
• More coming soon!